MK5 Golf GTI
All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: kas on April 10, 2016, 12:04:31 am
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hi guys
wanted some advice to see if the mods I have got lined up are the best way to go in my ed30. so far I've got the following bits:
forge twin intercooler
forge twin intake
decat
may possibly get the hpfp but still contemplating if it's going to be worth the money and also if I should get a performance exhaust to go with the decat or not?
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what power are you after.
just an exhaust will take you to 310/320bhp. then you need to think bigger brakes etc
pretty sure people don't rate the forge twintake
pre-cat delete is a good start. and 3 inch turbo back exhaust
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I had a twintake - sounded like Darth Vader having an asthma attack, which made me happy!
But for overall performance Revo intakes are considered the best for gains
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looking for figures in mid 300's. spoke to r tech and he was very much against me using the forge bits but how much difference will there actually be in terms of power compared to other bits available like I know a revo induction and peron intercooler will be best for figures from research but can the forge stuff I currently have really be that restrictive and will the figures be way off what they would be with revo and peron?
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what power are you after.
just an exhaust will take you to 310/320bhp. then you need to think bigger brakes etc
pretty sure people don't rate the forge twintake
pre-cat delete is a good start. and 3 inch turbo back exhaust
Pre cat delete a decat?
That's a new one.
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Upgrade your brakes,even when at 300 horses they are not up to the job,I was finding myself consciously braking 20 yards in advance as no confidnce in them,R32 ones do the job
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Upgrade your brakes,even when at 300 horses they are not up to the job,I was finding myself consciously braking 20 yards in advance as no confidnce in them,R32 ones do the job
BIG +1.
Please upgrade your brakes too!
Plenty of info on here....
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looking for figures in mid 300's. spoke to r tech and he was very much against me using the forge bits but how much difference will there actually be in terms of power compared to other bits available like I know a revo induction and peron intercooler will be best for figures from research but can the forge stuff I currently have really be that restrictive and will the figures be way off what they would be with revo and peron?
I think with the twintercooler, it's extra volume for the turbo to fill, so can be a fair bit of pressure drop there.
How about a MK6 R intercooler for around £250 from the dealer? OEM quality, bolts right in, cheap and there's proven gains which reduces intake temps on sustained high rpm pulls, so perfect for a KO4 engine.
Add to that a 3" downpipe (which usually stays 3" to half way under the car before joining the OEM system) and see where that takes you.
After that you can add an intake and cat back if you want more.
Just the DP and intercooler + software should take you to 330-340ish.
It's highly likely you will need a HPFP to sustain that kind of torque though. Loba is arguably the best, but also the most expensive.
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At what level does the stock catback become restrictive?
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At what level does the stock catback become restrictive?
The standard system is 2.5", or 60mm or something, which isn't too bad. It's probably the big suitcase silencer that's the main restriction. Hard to say what the hp limit is but plenty of GTIs/ED30s make good power on the standard cat back :smiley:.
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Thanks,
I'm at that stage where I'm debating what turbo to upgrade to. umming and arring etc.
just don't want to fit a capable turbo then not get good results as it catback is holding back the flow.
Ive seen a few threads with people running stock catback but cant seem to remember any turbo setups or figures they achieved
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Thanks,
I'm at that stage where I'm debating what turbo to upgrade to. umming and arring etc.
just don't want to fit a capable turbo then not get good results as it catback is holding back the flow.
Ive seen a few threads with people running stock catback but cant seem to remember any turbo setups or figures they achieved
seems you're talking about a turbo upgrade on an Ed 30 (ed30 thread at least...), but running a standard exhaust? :confused:
Paradox indeed...
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Thanks,
I'm at that stage where I'm debating what turbo to upgrade to. umming and arring etc.
just don't want to fit a capable turbo then not get good results as it catback is holding back the flow.
Ive seen a few threads with people running stock catback but cant seem to remember any turbo setups or figures they achieved
seems you're talking about a turbo upgrade on an Ed 30 (ed30 thread at least...), but running a standard exhaust? :confused:
Paradox indeed...
lol good 1
I don't have a ed30 but the turbo is still any upgrade for me. whatever turbo I go for it wont be ran flat out. and no it wont be a standard exhaust, Dp is already fitted with stock catback
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Thanks,
I'm at that stage where I'm debating what turbo to upgrade to. umming and arring etc.
just don't want to fit a capable turbo then not get good results as it catback is holding back the flow.
Ive seen a few threads with people running stock catback but cant seem to remember any turbo setups or figures they achieved
seems you're talking about a turbo upgrade on an Ed 30 (ed30 thread at least...), but running a standard exhaust? :confused:
Paradox indeed...
lol good 1
I don't have a ed30 but the turbo is still any upgrade for me. whatever turbo I go for it wont be ran flat out. and no it wont be a standard exhaust, Dp is already fitted with stock catback
If it were me I would just see what the standard cat back is capable of in your application and go from there. If it meets your hp goals, I can't see any point in spending the money needlessly tbh, unless of course you do actually want more noise, different tailpipes etc. I'd rather sink a grand+ into decent suspension or brakes than a few bits of bent pipe and a silencer!
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As others have recommended, ditch the forge bits. . . They just don't flow well enough for the K04 (fine on a 'normal GTI')
EVOMS or Revo intake, Audi S3 intercooler is an improvement (but stock will see 350bhp), you need APR or LOBA HPFP and a downpipe
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Has anyone mentioned brakes?? :rolleye: :signLOL:
I've no experience of the Forge intake parts personally but my tuner has worked with the Twintake in the past and doesn't recommend it as an alternative to the likes of Evoms or Revo. No idea on the Twintercooler, but they don't supply them or generally get asked to fit them as customer supplied items.
I don't mean to come across as negative but I would think seriously about many of the recommendations made here and see if you can adjust your parts selection before they get fitted. :happy2:
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Thanks,
I'm at that stage where I'm debating what turbo to upgrade to. umming and arring etc.
just don't want to fit a capable turbo then not get good results as it catback is holding back the flow.
Ive seen a few threads with people running stock catback but cant seem to remember any turbo setups or figures they achieved
seems you're talking about a turbo upgrade on an Ed 30 (ed30 thread at least...), but running a standard exhaust? :confused:
Paradox indeed...
lol good 1
I don't have a ed30 but the turbo is still any upgrade for me. whatever turbo I go for it wont be ran flat out. and no it wont be a standard exhaust, Dp is already fitted with stock catback
If it were me I would just see what the standard cat back is capable of in your application and go from there. If it meets your hp goals, I can't see any point in spending the money needlessly tbh, unless of course you do actually want more noise, different tailpipes etc. I'd rather sink a grand+ into decent suspension or brakes than a few bits of bent pipe and a silencer!
What he said, all day long. I'm not going to add anything to this as I've got to go for something to eat in half an hour and I'll be late if I get started....again! :mad: :slap:
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As others have recommended, ditch the forge bits. . . They just don't flow well enough for the K04 (fine on a 'normal GTI')
EVOMS or Revo intake, Audi S3 intercooler is an improvement (but stock will see 350bhp), you need APR or LOBA HPFP and a downpipe
And this...very definitely this!
...need to stop reading this thread :fighting2:
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ok after taking onboard the advice iv been looking at a few bits to replace the forge, iv come across an alloy s3 intercooler but will this be better or worse than the mk6 R intercooler as they are similar in prices?
Iv seen a RAMAIR induction kit brand new for under £200 so may get hold of one of them and also looking into a downpipe. Catback will be something i will be doing at the end.
If i get my car mapped with just a downpipe and intercooler and im not happy with the performance so decided to add bits later will it require a full map again?
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The MK6 R / late 8P S3 intercooler has an improved core over the early 8P alloy S3 one. Flows better, cools better and less pressure drop apparently. All you're missing out on is the metal end tanks. Either choice would be better than the standard GTI one!
You won't need a full remap. Maybe a few tweaks. It depends how much timing the existing map pulls back from EGTs (exhaust gases backing up in the head).
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ok after taking onboard the advice iv been looking at a few bits to replace the forge, iv come across an alloy s3 intercooler but will this be better or worse than the mk6 R intercooler as they are similar in prices?
Iv seen a RAMAIR induction kit brand new for under £200 so may get hold of one of them and also looking into a downpipe. Catback will be something i will be doing at the end.
If i get my car mapped with just a downpipe and intercooler and im not happy with the performance so decided to add bits later will it require a full map again?
Don't forget that upgrading the fuel pump will get the best out of your downpipe and intake. It's arguably the second most worthwhile mod after the downpipe.
As for the map, usually once you pay for the initial remap any subsequent map tweaks cost much less. R-Tech for example charge £290 for your first map and then to make alterations when you upgrade your hardware they charge you 2 hours of rolling road time. This was, for a while £90, but I was informed by Ben when I phoned R-Tech yesterday that it is now £150. Bit steep if you ask me, but that's what he told me.
With Revo maps you can alter 3 different parameters yourself with an optional SPS (little controller you plug into the OBD port), boost, fuel and timing. I'm not on Revo so I'm not sure whether a Stage 1 map can be altered all the way up to Stage 2+ solely using the SPS, or whether you'd need a fresh map once you're up to 2/2+ levels of hardware. Revo aren't fully custom, but the SPS at least allows the user more control over some basic settings.
You're on the right track with the hardware.
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ok after taking onboard the advice iv been looking at a few bits to replace the forge, iv come across an alloy s3 intercooler but will this be better or worse than the mk6 R intercooler as they are similar in prices?
Iv seen a RAMAIR induction kit brand new for under £200 so may get hold of one of them and also looking into a downpipe. Catback will be something i will be doing at the end.
If i get my car mapped with just a downpipe and intercooler and im not happy with the performance so decided to add bits later will it require a full map again?
Be sensible and do it properly. By that I mean fit the performance mods first, then get the remap last. that way you wont be going back 2-3+ times to get mapping tweeks
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what power are you after.
just an exhaust will take you to 310/320bhp. then you need to think bigger brakes etc
pretty sure people don't rate the forge twintake
pre-cat delete is a good start. and 3 inch turbo back exhaust
Pre cat delete a decat?
That's a new one.
i said pre-cat delete ? what you on about keyboard warrior.
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If he's got a decat, as he listed in his original post, he's already done away with the pre-cat.
Unless he's gutted the existing main cat and kept the original downpipe and pre cat. Which is unlikely.
Not sure what your keyboard warrior comment was meant to achieve but it won't get you far.
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Come keep the thread on track with out digs at each other
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No dig here Andy. A little misunderstanding if anything.